Blood pressure meds

Just curious if anyone's hubby is on blood pressure meds specifically calcium channel blockers and was still able to conceive. I read that it causes low sperm count, low motility and harder for sperm to fertilize an egg 😭 month 3 of ttc and I really feel that's why I'm not getting pregnant. I temp, use opks and check my cervix and I know I'm pretty fertile as I do have 9 children lol need some hope that maybe just maybe there's some good sperm left. I also read that he can take 2,000 mg of vitamin C a day to help...anyone try that before?